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,rniit No. <br />Use only for additions, under 750 ft2, that don t comply <br />1_4�:) Effective July 1, 1991 <br />E::Io <br />worksheet demonstrates compliancj1or where heal !oss improvements in the eedit toward compliance. Perform a CnaExisting and improvement <br />n the addition before using this form. U values: <br />A 991 wSEC Ch <br />MAIN WORKSHEET <br />PROPOSED CASE UA VALUE (pg. 2) <br />® BASE CASE UA VALUE (pg. 2) <br />c� Addition heat loss deficit (box 1 minus box 2) <br />Existing dwelling improvement credit (4A & B) <br />®COMPLIANCE (Box 3 minus 4, must be s O) <br />Relerto t e 1 apter 10, <br />for all U-values not listed below. <br />Untested glazing default values: <br />Single pane U.120 <br />Double pane U.90 <br />Double pane wrvinyl <br />or wood sash U.75 <br />i <br />6q <br />= y Z <br />_ 73 6U <br />31. ip Existing building envelope values: <br />Ceilings w/no insulation U.30 <br />Floors w/no insulation U.13 <br />Walls w/no insulation U.31 <br />Existing Dwell;ng improvement credit <br />Glass block use <br />calculations <br />Change/location <br />Area <br />U-Value <br />UA <br />INSPECTED <br />Existing glazing ( <br />) <br />x U— <br />(a) <br />Replacement glazing ( <br />) <br />x U_ <br />(b) <br />SUBTRACT (b) from (a) <br />(c) <br />Existing glazing ( <br />) <br />x U_ <br />(d) <br />Replacement glazing ( <br />_) <br />I x'J.-- <br />(e) <br />�( <br />SUBTRACT (e) from (d) <br />(1) <br />Existing insulation ('- <br />) <br />Rd <br />iq'7��j <br />x U—`JJy <br />(g) 7, 62 <br />New insulation( <br />) <br />•3e <br />q3b <br />xUL()�-q <br />(h) <br />SUBTRACT (h) from (g) <br />Q lf5• r ' <br />Existing insulation ( <br />) <br />R-1 % <br />17,17 <br />x U—ca4l Iq <br />(I) CQ-bl <br />New insulation(—) <br />x U <br />(k) 32, <br />SUBTRACT (k) from (j) <br />Ab 'j y <br />wEes,00wrAra-octoeene,' <br />UA CREDITS (Total <br />boxes c, f, <br />i, and il > y _ 3.Lo <br />